NPT round internal hex plug engineered by Radium Engineering for sealing unused NPT (National Pipe Thread) ports. This CNC-machined billet aluminum plug features a compact internal hex design for a clean, cosmetic appearance with reliable NPT thread sealing.Available Part Numbers 14-0172: 1/8" NPT Round Internal Hex Plug 14-0173: 3/8" NPT Round Internal Hex Plug Key Features ✓ CNC-machined billet aluminum construction ✓ Round internal hex design ✓ Compact and cosmetic appearance ✓ NPT tapered thread sealing ✓ Available in 1/8" and 3/8" NPT sizes ✓ Professional-grade motorsport component Part Numbers: 14-0172, 14-0173 Construction: CNC-machined billet aluminum Design: Round internal hex Thread Type: NPT (National Pipe Thread) Available Sizes: 1/8" NPT, 3/8" NPT Application: Universal NPT ports ApplicationsIdeal for sealing unused NPT ports on catch cans, manifolds, turbo oil drains, and other components. Perfect for motorsport, track, or high-performance street builds where clean, reliable NPT port sealing is required.Benefits Internal hex provides clean, low-profile appearance NPT tapered threads ensure reliable sealing CNC-machined precision ensures proper fitment Multiple NPT sizes accommodate various applications Professional motorsport-grade construction Important Note: NPT (National Pipe Thread) fittings seal by the intentional interference created by the tapered threads meshing together. Always use a small amount of PTFE paste or tape on NPT threads and tighten to finger tight, then add another 1.5 to 3 turns until tight.Fast shipping available throughout Australia. Lead times may vary - contact us for current availability.
